Battery swap station system and control method of battery swap station system

Abstract

The invention discloses a battery swap station system and a control method of the battery swap station system.The battery swap station system comprises an energy management module, a station control device, a one-way charging module, a battery bin, a two-way charging and discharging module and a power grid interface, and the battery bin is provided with at least one first bin position and at least one second bin position; the bidirectional charging and discharging module is connected with the second bin position and the power grid interface; the energy management module is used for determining at least one target bin for bidirectional charging and discharging in the at least one second bin according to the power grid interaction requirement; the station control device is used for locking the at least one target storage bin so as to change the use state of the at least one target storage bin; and the bidirectional charging and discharging module is used for communicating at least one target bin position with the power grid interface so as to realize bidirectional charging and discharging. Therefore, by arranging the bidirectional charging and discharging module, part of the bins are transformed into bins capable of performing bidirectional charging and discharging, so that the bidirectional charging and discharging function is realized on the basis of the existing battery changing system, the transformation cost is saved, and the implementation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery swap stations, and in particular to a battery swap station system and a control method for the battery swap station system. Background Art

[0002] With the rapid development of electric vehicles, the country has vigorously advocated the construction of charging facilities, and battery swap stations have become an important part of the charging infrastructure.

[0003] Currently, the mainstream battery swap stations in the market are one-way. To achieve charging and discharging functions at battery swap stations, existing technologies mainly involve modifying all charging circuits at existing one-way battery swap stations and replacing them with bidirectional charging and discharging equipment, or directly building battery swap stations with bidirectional charging and discharging equipment. Existing technologies that require modifying or redesigning all charging circuits at the station or directly building new battery swap stations result in high implementation costs and low efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a battery swap station system and a control method for the battery swap station system, which realizes bidirectional charging and discharging functions based on the existing battery swap system, saves modification costs, and improves implementation efficiency.

[0005] To achieve the above objectives: In a first aspect, an embodiment of the present application provides a battery swap station system, comprising an energy management module, a station control device, a unidirectional charging module, a battery compartment, a bidirectional charging and discharging module, and a grid interface, wherein the battery compartment has at least one first compartment and at least one second compartment, the unidirectional charging module connects the first compartment to the grid interface and connects the second compartment to the grid interface, and the bidirectional charging and discharging module connects the second compartment to the grid interface; The energy management module is configured to determine at least one target position for bidirectional charging and discharging in at least one second position according to grid interaction requirements; The station control device is used to lock the at least one target storage location to change the usage status of the at least one target storage location; The bidirectional charging and discharging module is used to connect the at least one target location with the grid interface to achieve bidirectional charging and discharging.

[0006] In one embodiment, the first compartment and the second compartment in the battery compartment are connected in parallel.

[0007] In one embodiment, the unidirectional charging module and the bidirectional charging and discharging module connected to the same second position are connected in parallel; the bidirectional charging and discharging modules connected to different second positions are connected in parallel.

[0008] In one embodiment, the energy management module is configured to: Determining at least one target location for bidirectional charging and discharging in the at least one second location based on the grid interaction requirement, status information of the at least one second location, and a preset service priority; and According to the grid interaction demand and the status information of the at least one target location, a target task for bidirectional charging and discharging of each target location is determined.

[0009] In one embodiment, the energy management module is further configured to: obtaining in real time the battery status and real-time discharge requirement of the at least one target storage location; Determine whether the battery in the target location needs to be scheduled based on the battery status and the real-time discharge demand; If so, a prompt message is generated.

[0010] In one embodiment, the energy management module is further configured to: According to the status information of the first bins in the battery swap station and the preset operation priority scheduling rules, a dispatchable bin in at least one first bin that can be exchanged with the battery in the target bin is determined.

[0011] In a second aspect, an embodiment of the present application provides a control method for a battery swap station system, wherein the battery swap station system includes an energy management module, a station control device, a unidirectional charging module, a battery compartment, a bidirectional charging and discharging module, and a grid interface. The control method includes: The energy management module determines at least one target position for bidirectional charging and discharging in at least one second position according to grid interaction requirements; The station control device locks the at least one target storage location to change the usage status of the at least one target storage location; The bidirectional charging and discharging module connects the at least one target location with the grid interface to achieve bidirectional charging and discharging.

[0012] In one embodiment, the method further comprises: The energy management module determines a dispatchable position in at least one first position that can be exchanged with the battery in the target position based on the status information of the first position in the battery swap station and a preset operation priority scheduling rule.

[0013] In a third aspect, an embodiment of the present application provides a computing device, specifically comprising: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to execute the control method of the battery swap station system as described in the second aspect.

[0014] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored. When the instructions in the computer-readable storage medium are executed by a processor of a computing device, the computing device is enabled to implement the control method of the battery swap station system as described in the second aspect.

[0015] The embodiments of the present application provide a battery swap station system and a control method for the battery swap station system. The battery swap station system includes an energy management module, a station control device, a unidirectional charging module, a battery compartment, a bidirectional charging and discharging module, and a grid interface. The battery compartment has at least one first compartment and at least one second compartment. The unidirectional charging module connects the first compartment to the grid interface and connects the second compartment to the grid interface. The bidirectional charging and discharging module connects the second compartment to the grid interface. The energy management module is used to determine at least one target compartment for bidirectional charging and discharging in at least one second compartment according to grid interaction requirements. The station control device is used to lock the at least one target compartment to change the usage status of the at least one target compartment. The bidirectional charging and discharging module is used to connect the at least one target compartment to the grid interface to achieve bidirectional charging and discharging. In this way, by setting up the bidirectional charging and discharging module, some compartments are transformed into compartments capable of bidirectional charging and discharging, and the bidirectional charging and discharging function is realized on the basis of the existing battery swap system, saving the transformation cost and improving the implementation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the architecture of a battery swap station system provided in an embodiment of the present invention.

[0017] Figure 2 A flow chart of a control method for a battery swap station system provided in an embodiment of the present invention.

[0018] Figure 3 A schematic diagram of a specific flow chart of a control method for a battery swap station system provided in an embodiment of the present invention.

[0019] Figure 4 A schematic diagram of the structure of a computing device provided in an embodiment of the present invention.

[0020] Processor 510 , memory 511 , network interface 512 , and bus system 513 . DETAILED DESCRIPTION

[0021] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0022] It should be noted that, in this document, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0023] It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are merely used to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the term "if" as used herein may be interpreted as "at the time of," "when," or "in response to a determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising" and "including" indicate the presence of the described features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" as used herein are to be interpreted as inclusive, meaning any one or any combination. Thus, “A, B, or C” or “A, B, and / or C” means “any of: A; B; C; A and B; A and C; B and C; A, B, and C.” An exception to this definition occurs only when a combination of elements, functions, steps, or operations are inherently mutually exclusive in some manner.

[0024] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and they can be performed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0025] It should be noted that in this article, step codes such as S101 and S102 are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial limitation on the order. When implementing the step, those skilled in the art may execute S102 first and then S101, etc., but these should all be within the scope of protection of this application.

[0026] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0027] In the subsequent description, the use of suffixes such as "module", "component" or "unit" to represent elements is only for the purpose of facilitating the description of the present application and has no specific meaning. Therefore, "module", "component" or "unit" can be used interchangeably.

[0028] The battery swap station system proposed in this application has a specific workflow when performing charging and discharging operations: after the battery swap station receives a request from the virtual power plant system, the station manager confirms whether to respond. If so, the response power and response plan are set in the station control device of the battery swap station system. The energy management module is responsible for the issuance of overall signal control, and realizes the charging and discharging power regulation and control of the battery in the battery swap station through the bidirectional charging and discharging device. The electric energy flows from the battery to the bidirectional charging and discharging device according to the control power, and is then returned to the power grid through the box transformer.

[0029] Specifically, see Figure 1 The embodiment of the present application provides a battery swap station system, including an energy management module, a station control device, a unidirectional charging module, a battery compartment, a bidirectional charging and discharging module and a grid interface, wherein the battery compartment has at least one first compartment and at least one second compartment, such as Figure 1 Battery 1, Battery 2, Battery 3, and Battery 4 are the second position. Figure 1Battery x in the figure represents the first battery compartment. Here, the unidirectional charging module connects the first battery compartment to the grid interface and the second battery compartment to the grid interface, and the bidirectional charging and discharging module connects the second battery compartment to the grid interface. The energy management module is configured to determine at least one target battery compartment for bidirectional charging and discharging in the at least one second battery compartment based on grid interaction requirements. The station control device is configured to lock the at least one target battery compartment to change its usage status. The bidirectional charging and discharging module is configured to connect the at least one target battery compartment to the grid interface to implement bidirectional charging and discharging.

[0030] Among them, the energy management module includes a battery swap station cloud platform and a local end. Among them, the battery swap station cloud platform is responsible for the battery swap order and business management of the battery swap station, can be connected to the virtual power plant management system, and receive the demand-side response instructions of the virtual power plant. Among them, the local end can monitor the operating status of the battery swap station system in real time. Specifically, the functions of the energy management module include at least one of the following: optimizing the charging and discharging strategy according to the grid demand and the battery status in the battery compartment; real-time monitoring of the operating status of the battery swap station system and issuing control instructions; analyzing the operating status of the battery swap station system, and further predicting the grid demand and battery performance; ensuring the safe operation of the battery swap station system and handling faults in a timely manner; providing a user interface for setting the operating parameters of the bidirectional charging and discharging module. Optionally, the energy management module is connected to the charging and discharging control modules corresponding to the station control device and the bidirectional charging and discharging module respectively to realize intelligent management of energy flow.

[0031] The battery compartment is used to store batteries and includes at least one first compartment and at least one second compartment. The first compartment is connected to the unidirectional charging module to provide charging and battery replacement services for the batteries; the second compartment is connected to the bidirectional charging and discharging module to charge the batteries through the unidirectional charging module. At the same time, under the control of the energy management module and the station control device, the bidirectional charging and discharging module can also conduct two-way energy exchange with the power grid.

[0032] The grid interface serves as the connection between the battery swap station system and the external grid, enabling power transmission and information exchange. Through the grid interface, the battery swap station can draw power from the grid using a box-type transformer to charge the battery. It can also feed the battery power back to the grid using the box-type transformer. Furthermore, the station can receive various control signals and status information from the grid, such as real-time load, voltage, frequency, and other parameters, enabling the energy management module to make more accurate decisions based on this information.

[0033] The station control device is used to lock at least one target location determined by the energy management module. Once locked, the location's usage status changes from a standard location to a special state capable of bidirectional charging and discharging. This ensures that batteries in the target location cannot be automatically or manually removed before discharge. This location locking ensures the targeted and orderly nature of bidirectional charging and discharging operations, ensuring that only the selected location participates in the corresponding energy exchange process.

[0034] Optionally, a bidirectional charge-discharge module provides battery charging and discharging capabilities for the battery compartments in the battery swap station system. Optionally, a corresponding charge-discharge control module is provided for the bidirectional charge-discharge module. The bidirectional charge-discharge module is connected to the charge-discharge control module and is used to convert alternating current (AC) into direct current (DC) for battery charging, or convert battery DC into AC for return to the grid. The charge-discharge control module is connected to the energy management module to receive control commands and provide feedback on operating parameters. The charge-discharge control module is also connected to the bidirectional charge-discharge module to issue charge-discharge and power adjustment commands.

[0035] Optionally, each unidirectional charging module is connected to a first AC switch and a first DC switch, wherein the first AC switch serves as the AC input circuit switch for each unidirectional charging module, and the first DC switch serves as the DC output circuit switch for each unidirectional charging module. Optionally, each unidirectional charging module is connected in parallel and is also connected to a first power supply switch.

[0036] Optionally, each bidirectional charge and discharge module is connected to a second AC switch and a second DC switch. The second AC switch serves as the AC input circuit switch for each bidirectional charge and discharge module, receiving and executing control instructions from the charge and discharge control module. The second DC switch serves as the DC output circuit switch for each bidirectional charge and discharge module, receiving and executing control instructions from the charge and discharge control module. Optionally, each bidirectional charge and discharge module is connected in parallel and is also connected to a second power supply switch for controlling the total power supply.

[0037] In one embodiment, the unidirectional charging modules and the bidirectional charging and discharging modules connected to the same second position are connected in parallel; and the bidirectional charging and discharging modules connected to different second positions are connected in parallel.

[0038] Optionally, when realizing the bidirectional charging and discharging function of the second compartment, the connection between the second compartment and the unidirectional charging module is disconnected, that is, the first AC switch and the first DC switch are disconnected, and the second AC switch and the second DC switch are closed to realize the connection between the second compartment and the bidirectional charging and discharging module. When realizing the unidirectional charging function of the second compartment, the connection between the second compartment and the bidirectional charging and discharging module is disconnected, that is, the second AC switch and the second DC switch are disconnected, and the first AC switch and the first DC switch are closed to realize the connection between the second compartment and the unidirectional charging and discharging module. Here, by connecting the unidirectional charging module and the bidirectional charging and discharging module in parallel, the working mode of the second compartment can be flexibly selected according to actual needs, which helps the battery swap station system to better adapt to changing application scenarios.

[0039] In one embodiment, the charge and discharge control module is correspondingly provided with a control power supply for providing control power to the charge and discharge control module.

[0040] In one embodiment, a metering module is provided corresponding to the bidirectional charge and discharge module, which is used to be responsible for the AC power consumption and discharge of the bidirectional charge and discharge module, and at the same time measure the DC power consumption and discharge of each modified battery compartment circuit, and transmit the power signal to the charge and discharge control module in real time.

[0041] In one embodiment, the first compartment and the second compartment in the battery compartment are connected in parallel.

[0042] Optionally, multiple first positions in the battery compartment are connected in parallel with each other and are controlled by the first power supply switch at the same time. Optionally, multiple second positions in the battery compartment are connected in parallel with each other and are controlled by the second power supply switch at the same time. Optionally, the first position and the second position in the battery compartment are connected in parallel with each other. Here, the parallel connection method makes the battery swap station system more convenient in subsequent expansion or upgrading. When it is necessary to add a new bidirectional charge and discharge module to expand the charging and discharging capacity of the system, it can be directly connected to the existing circuit structure in parallel to directly modify the first position and determine the corresponding second position without the need for large-scale modification of the overall architecture. In this way, product configurations with different numbers of loops are defined according to market demand, and the number of bidirectional charge and discharge modules is flexibly adjusted to achieve on-demand expansion of the bidirectional charge and discharge modules, flexibly adapting to the actual needs of the market, thereby reducing expansion costs and implementation difficulties.

[0043] In one embodiment, the energy management module is configured to: Determining at least one target location for bidirectional charging and discharging in the at least one second location based on grid interaction requirements, status information of the at least one second location, and a preset service priority; and According to the grid interaction demand and the status information of at least one target location, a target task of bidirectional charging and discharging for each target location is determined.

[0044] Grid interaction requirements include discharge power and discharge time. Second-bay status information includes the battery's dischargeable power, current battery usage, battery temperature, and health status. The preset service priority can be determined by comprehensively considering the battery's dischargeable power, current battery usage, and health status in each bay.

[0045] Optionally, after obtaining the grid interaction demand, the status information of at least one second bin in the battery swap station is obtained, and in combination with the status information of at least one second bin and the preset business priority, one or more target bins that need to be discharged to meet the grid interaction demand are determined in the at least one second bin. Optionally, the discharge power in the grid interaction demand is divided equally among each target bin, and a target task for discharging for each target bin is determined. In one embodiment, different discharge powers can also be allocated based on the dischargeable power of each target bin as the target task for discharging for each target bin. In this way, by determining the target bin and target task according to the grid interaction demand, the charging and discharging operations of the battery swap station can be closely matched with the actual needs of the grid, while improving the utilization efficiency of the battery swap station resources.

[0046] For example, it is generally claimed based on the virtual power plant or offline demand-side discharge response requirements: discharge power and discharge time. When a certain time is manually "claimed" to start discharging, the discharge power is 200kW and lasts for 2 hours. According to the existing battery capacity, 10 batteries are required to participate in the interaction at the same time. Each battery is allocated 40kwh, the discharge power is 20kW, and the discharge time is 2 hours.

[0047] In one embodiment, the energy management module is further configured to: Obtain the battery status and real-time discharge requirements of at least one target location in real time; Determine whether the battery in the target location needs to be dispatched based on the battery status and real-time discharge requirements; If so, a prompt message is generated.

[0048] Among them, the battery status includes the battery's current data, voltage data, remaining capacity, battery temperature, etc. Optionally, if it is detected that the battery status of the target position is abnormal, or the dischargeable capacity in the battery is lower than the preset capacity threshold, that is, the battery power is about to be discharged and there is still a discharge demand on the grid side, it is judged that the battery of the current target position needs to be scheduled, and a corresponding prompt information is generated. Among them, the prompt information includes alarm information on the battery status and request scheduling information. Here, based on the real-time monitored battery status information, the battery charging and discharging operations are reasonably arranged in the grid interaction, so that the battery is discharged only when the battery power is sufficient and the status is normal, ensuring that the energy released by the battery is effectively utilized. At the same time, through the generated request scheduling information, the battery swap station can maintain a good operating state in the grid interaction, and make reasonable adjustments according to the actual state of the battery and the needs of the grid, to ensure that the interaction between the battery swap station and the grid is stable and reliable.

[0049] In one embodiment, if it is detected that the target position is performing battery swapping operations while discharging to the grid, there is a deviation between the discharge plan and capacity of the target position. During discharge, the energy management module monitors the battery capacity in the target position in real time. When the battery power of the target position is about to be discharged and there is still a discharge demand on the grid side, the energy management module can request the station control device. The station control device dispatches some batteries to continue discharging according to the battery capacity of other positions in the battery swap station and the battery swap demand. By real-time monitoring and timely requesting the station control device to dispatch the battery to continue discharging when the power is about to be discharged, the stability of the battery swap station system operation is guaranteed, and the operational flexibility of the battery swap station system under different working conditions is enhanced.

[0050] In one embodiment, the energy management module is further configured to: According to the status information of the first positions in the battery swap station and the preset operation priority scheduling rules, a dispatchable position in at least one first position that can be exchanged with the battery in the target position is determined.

[0051] Optionally, when scheduling batteries for the target location, the energy management module sends a battery scheduling request to the station control device, which then queries the status information of the first location in the battery swap station, including the usage status of the first location, the available capacity of the battery in the first location, and its health status. In this way, the station control device determines a schedulable location to swap with the battery in the current target location based on the status information of the first location and the preset operational priority scheduling rules, so as to perform discharge processing based on the scheduled battery.

[0052] For example, when a grid-interaction battery needs 80kWh after being fully discharged, the energy management module's control algorithm sends a battery dispatch request to the station control device. The station control device queries the SOC of the swap batteries in the first bin. If discharging to the grid is prioritized, the station control device dispatches the fully charged batteries (SOC > 90%) in the first bin, thus dispatching two batteries to meet the requirement. If battery swapping is prioritized (SOC > 90% requires battery swapping), the station control device selects batteries in the first bin (50%-90%) for discharge, potentially requiring three to four batteries. Once these batteries are dispatched to the S2G bin (vehicle-grid interaction bin), they are redistributed by the energy management module.

[0053] Optionally, based on manual scheduling, a dispatchable position that can meet the real-time discharge demand can be selected from the first position to exchange the battery in the dispatchable position with that in the target position to ensure the normal operation of the battery swap station system to discharge the power grid.

[0054] In one embodiment, after completing the battery scheduling for the target location, the energy management module will automatically reallocate the discharge tasks of these batteries, that is, intelligently allocate them according to the current needs of the power grid and the characteristics of the batteries to ensure that the batteries in the target location can continue to perform discharge tasks to the power grid in an appropriate manner.

[0055] In summary, in the battery swap station system provided by the above embodiment, by setting up a bidirectional charging and discharging module, some positions are transformed into positions capable of bidirectional charging and discharging, thereby realizing bidirectional charging and discharging functions on the basis of the existing battery swap system, saving transformation costs and improving implementation efficiency.

[0056] Based on the same inventive concept as the above-mentioned embodiment, the embodiment of the present application proposes a control method for a battery swap station system. The control method for a battery swap station system provided by the embodiment of the present application can be implemented in software and / or hardware. In this embodiment, the control method for a battery swap station system is applied to a battery swap station system as an example. The battery swap station system includes an energy management module, a station control device, a unidirectional charging module, a battery compartment, a bidirectional charging and discharging module, and a grid interface. The embodiment of the present application provides a control method for a battery swap station system, including the following steps: Step S101 : The energy management module determines at least one target location for bidirectional charging and discharging in at least one second location according to grid interaction requirements.

[0057] Grid interaction requirements include discharge power and discharge time. Second-bay status information includes the battery's dischargeable power, current battery usage, battery temperature, and health status. The preset service priority can be determined by comprehensively considering the battery's dischargeable power, current battery usage, and health status in each bay.

[0058] After obtaining the grid interaction demand, status information of at least one second slot in the battery swap station is obtained. Based on the status information of the at least one second slot and a preset service priority, one or more target slots are determined within the at least one second slot for discharge to meet the grid interaction demand. Optionally, the discharge power in the grid interaction demand is allocated to each target slot according to a preset rule, and a target discharge task is determined for each target slot. Here, the preset rule can be determined based on the user's personalized needs or the status information of the target slot.

[0059] Step S102: The station control device locks at least one target location to change the usage status of the at least one target location.

[0060] Optionally, once a target battery cell is locked, its usage status changes from a standard battery cell to a special state capable of bidirectional charging and discharging. This ensures that batteries in the target battery cell cannot be removed automatically or manually before discharge. The station control device's locking of battery cells ensures the targeted and orderly nature of bidirectional charging and discharging operations, ensuring that only the selected battery cell participates in the corresponding energy exchange process.

[0061] Step S103: The bidirectional charging and discharging module connects at least one target location to the grid interface to achieve bidirectional charging and discharging.

[0062] In one embodiment, the method further comprises: The energy management module determines a dispatchable position in at least one first position that can be exchanged with the battery in the target position based on the status information of the first position in the battery swap station and the preset operation priority scheduling rules.

[0063] Optionally, when scheduling batteries for the target location, the energy management module sends a battery scheduling request to the station control device, which then queries the status information of the first location in the battery swap station, including the usage status of the first location, the available capacity of the battery in the first location, and its health status. In this way, the station control device determines a schedulable location to swap with the battery in the current target location based on the status information of the first location and the preset operational priority scheduling rules, so as to perform discharge processing based on the scheduled battery.

[0064] Optionally, based on manual scheduling, a dispatchable position that can meet the real-time discharge demand can be selected from the first position to exchange the battery in the dispatchable position with that in the target position to ensure the normal operation of the battery swap station system to discharge the power grid.

[0065] In one embodiment, the method further comprises: Determining at least one target location for bidirectional charging and discharging in the at least one second location based on grid interaction requirements, status information of the at least one second location, and a preset service priority; and According to the grid interaction demand and the status information of at least one target location, a target task of bidirectional charging and discharging for each target location is determined.

[0066] In one embodiment, the method further comprises: Obtain the battery status and real-time discharge requirements of at least one target location in real time; Determine whether the battery in the target location needs to be dispatched based on the battery status and real-time discharge requirements; If so, a prompt message is generated.

[0067] The specific implementation process of the above control method of the battery swap station system can be found in the definition of the battery swap station system in the previous embodiment, and will not be repeated here.

[0068] In summary, the control method for the battery swap station system provided in the above embodiment maximizes the utilization of the discharge capacity of the target bay. At the same time, when the battery capacity of the target bay to be modified is about to be exhausted, the battery status of the unmodified bays within the station can be evaluated based on the station control device, and the batteries can be scheduled according to business priorities to achieve the empty-full exchange of discharged batteries in the battery swap station system with full-capacity batteries in the unmodified bays. This not only improves the utilization efficiency of the batteries, but also ensures the stability and reliability of the battery swap station when participating in grid interaction, while taking into account the coordinated operation of the battery swap station's main business (battery swap service) and the charging and discharging functions.

[0069] Based on the same inventive concept as the above embodiments, the specific steps of modifying the battery swap station system in this application include: Step 1: Assess grid interaction requirements, calculate the number of bidirectional charging and discharging modification bays based on the obtained grid interaction requirements, and select the corresponding equipment configuration.

[0070] Step 2: Design and manufacture the equipment. Based on the design results of Step 1, determine the number of circuits for the bidirectional charging and discharging device and complete the equipment manufacturing. Also prepare the DC cables, AC cables, network cables, and battery-specific communication branch cables required for the transformation.

[0071] Step 3: Prepare for equipment installation. Select a location for the bidirectional charging and discharging module near the proposed battery swap station and prepare the equipment foundation. The equipment foundation should be located close to the existing charger, and a pre-buried cable trench should be established for laying and connecting DC cables, battery communication cables, and power cables.

[0072] Step 4: Install and fix the equipment. Install the bidirectional charging and discharging device on the cement foundation and fix it with bolts to ensure the equipment is grounded.

[0073] Step 5: Cable connection and communication configuration: Use a DC cable to connect the DC switch output of the bidirectional charging and discharging device to the DC switch output of the battery swap station charger. Also, use a battery communication branch cable to connect the communication interface of the bidirectional charging and discharging module between the charger module and the battery communication cable. Then, use a network cable to connect the bidirectional charging and discharging device, energy management module, and battery swap station control system.

[0074] Step 6: Equipment debugging and functional verification, debug and verify the functions of the above equipment modules to ensure the normal operation of the system.

[0075] Step 7: Expansion and adjustment. If the equipment needs to be expanded due to changes in grid interaction requirements, repeat steps 1-6 to transform the battery swap station.

[0076] Based on the battery swap station system determined in the above steps, the control method of the battery swap station system provided by this application is described in detail below through a specific example. Figure 3 As shown, the following steps are included: Step 201: Position attribute setting.

[0077] Optionally, based on the battery swap station's bay modification, staff can set bay attributes in the energy management module to determine a first bay with battery swap attributes and a second bay with grid interaction attributes. Here, the second bay can be fully or partially set to grid interaction mode, while the first bay is in battery swap mode.

[0078] Step 202: The location attributes are transmitted to the station control device of the battery swap station.

[0079] Optionally, the energy management module transmits configuration information of the first bin and the second bin to the station control device and the bidirectional control module.

[0080] Step 203: Station control device switch setting.

[0081] Optionally, the station control device controls the switching states of the first AC switch and the first DC switch of the charging circuit corresponding to each first position.

[0082] Step 204: bidirectional charge and discharge device switch state control.

[0083] Optionally, the charge-discharge control module controls the states of the second AC switch and the second DC switch corresponding to each second position in the bidirectional charge-discharge device.

[0084] Step 301: Discharge plan setting.

[0085] Optionally, a discharge plan is set according to grid interaction requirements, and the plan information is passed to the energy management module.

[0086] Step 302: Battery status query and power allocation.

[0087] Optionally, the energy management module queries the station control device for the battery SOC status of the target bin, allocates the power load participating in the grid interaction as the target task of the target bin, and sends the bin information of the target bin to the station control device.

[0088] Step 303: Lock the battery compartment.

[0089] Optionally, the station control device locks the grid-interactive battery at the target location according to demand.

[0090] Step 401: Send a control instruction.

[0091] Optionally, the energy management module sends a control instruction to the charge and discharge control module.

[0092] Step 402: Execute the charge and discharge plan.

[0093] Optionally, after receiving the instruction, the charge and discharge control module sends a discharge power instruction to the bidirectional charge and discharge module, and the battery in the target position starts charging or discharging.

[0094] Step 403: Battery scheduling request.

[0095] Optionally, if it is detected that the battery capacity of the target storage location is insufficient, the energy management module control algorithm sends a battery scheduling request to the station control device.

[0096] Step 404: Battery scheduling response.

[0097] Optionally, after receiving the request, the station control device checks the battery status of the first bin and dispatches available batteries to the target bin according to the operation priority to realize the battery exchange.

[0098] Step 405: The battery is exhausted, and the process ends.

[0099] Optionally, the entire process ends when the plan is executed or the battery in the target location is depleted. Optionally, operational data of the battery swap station system is obtained when executing grid interaction requirements. Here, when the energy management module includes a battery swap station cloud platform, the final feedback operational data can be fed back to the battery swap station cloud platform for management and storage. Here, the battery swap station cloud platform can also connect to the virtual power plant management system and receive demand-side response instructions from the virtual power plant.

[0100] In summary, the control method of the battery swap station system provided in the above embodiment significantly reduces the cost and construction difficulty of the charging and discharging functions of the discharge station through modular design, intelligent management and flexible expansion capabilities, while improving the utilization rate and economy of the equipment, providing an efficient and reliable solution for the battery swap station to participate in grid interaction.

[0101] Based on the same inventive concept as the above embodiments, an embodiment of the present invention provides a computing device, such as Figure 4 As shown, the computing device includes: a processor 510 and a memory 511 storing a computer program; wherein, Figure 4 The processor 510 shown in the figure is not used to indicate that the number of processors 510 is one, but is only used to indicate the positional relationship of the processor 510 relative to other devices. In actual applications, the number of processors 510 may be one or more; similarly, Figure 4 The memory 511 shown in the figure has the same meaning, that is, it is only used to refer to the position relationship of the memory 511 relative to other devices. In actual applications, the number of memories 511 can be one or more. When the processor 510 runs the computer program, the above-mentioned control method for battery swap operation and maintenance is implemented.

[0102] The computing device may also include: at least one network interface 512. The various components in the computing device are coupled together via a bus system 513. It is understood that the bus system 513 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 513 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 4 Various buses are labeled as bus system 513.

[0103] Memory 511 may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory may include read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disk, or compact disc read-only memory (CD-ROM); magnetic surface memory may include magnetic disk or tape memory. Volatile memory may include random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus random access memory (DRRAM).The memory 511 described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0104] The memory 511 in the embodiment of the present invention is used to store various types of data to support the operation of the computing device. Examples of such data include: any computer program used to operate on the computing device, such as an operating system and application programs; contact data; phone book data; messages; images; videos, etc. Among them, the operating system includes various system programs, such as the framework layer, core library layer, and driver layer, which are used to implement various basic services and handle hardware-based tasks. The application program can include various application programs, such as media players and browsers, which are used to implement various application services. Here, the program implementing the method of the embodiment of the present invention can be included in the application program.

[0105] Based on the same inventive concept as the above-mentioned embodiment, this embodiment further provides a computer-readable storage medium, in which a computer program is stored. The computer-readable storage medium may be a magnetic random access memory (FRAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a read-only optical disc (CD-ROM) or other memory; or it may be various devices including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc. When the computer program stored in the computer-readable storage medium is executed by the processor, the control method for battery swapping operation and maintenance applied to the above-mentioned computing device is implemented. For the specific steps implemented when the computer program is executed by the processor, please refer to the flowchart of FIG. Figure 2 The description of the illustrated embodiment will not be repeated here.

[0106] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0107] As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0108] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A battery swap station system, characterized in that: The station includes an energy management module, a station control device, a unidirectional charging module, a battery compartment, a bidirectional charging and discharging module, and a grid interface. The battery compartment has at least one first compartment and at least one second compartment. The unidirectional charging module connects the first compartment to the grid interface and connects the second compartment to the grid interface. The bidirectional charging and discharging module connects the second compartment to the grid interface. The energy management module is configured to determine at least one target position for bidirectional charging and discharging in at least one second position according to grid interaction requirements; The station control device is used to lock the at least one target storage location to change the usage status of the at least one target storage location; The bidirectional charging and discharging module is used to connect the at least one target location with the grid interface to achieve bidirectional charging and discharging.

2. The battery swap station system according to claim 1, characterized in that: The first and second battery compartments are connected in parallel.

3. The battery swap station system according to claim 1, characterized in that: The unidirectional charging modules and bidirectional charging and discharging modules connected to the same second position are connected in parallel; the bidirectional charging and discharging modules connected to different second positions are connected in parallel.

4. The battery swap station system according to claim 1, characterized in that: The energy management module is used to: Determining at least one target location for bidirectional charging and discharging in the at least one second location based on the grid interaction requirement, status information of the at least one second location, and a preset service priority; as well as, According to the grid interaction demand and the status information of the at least one target location, a target task for bidirectional charging and discharging of each target location is determined.

5. The battery swap station system according to claim 1, characterized in that: The energy management module is further configured to: obtaining in real time the battery status and real-time discharge requirement of the at least one target storage location; Determine whether the battery in the target location needs to be scheduled based on the battery status and the real-time discharge demand; If so, a prompt message is generated.

6. The battery swap station system according to claim 1 or 5, characterized in that: The energy management module is further configured to: According to the status information of the first bins in the battery swap station and the preset operation priority scheduling rules, a dispatchable bin in at least one first bin that can be exchanged with the battery in the target bin is determined.

7. A control method for a battery swap station system, characterized in that: The battery swap station system includes an energy management module, a station control device, a unidirectional charging module, a battery compartment, a bidirectional charging and discharging module, and a grid interface. The control method includes: The energy management module determines at least one target position for bidirectional charging and discharging in at least one second position according to grid interaction requirements; The station control device locks the at least one target storage location to change the usage status of the at least one target storage location; The bidirectional charging and discharging module connects the at least one target location with the grid interface to achieve bidirectional charging and discharging.

8. The method according to claim 7, characterized in that The method further comprises: The energy management module determines a dispatchable position in at least one first position that can be exchanged with the battery in the target position based on the status information of the first position in the battery swap station and a preset operation priority scheduling rule.

9. A computing device, characterized in that include: A processor and a memory for storing executable instructions; wherein the processor is configured to execute the instructions to implement the control method of the battery swap station system as described in claims 7-8.

10. A computer-readable storage medium, characterized in that When the instructions in the computer-readable storage medium are executed by a processor, the control method of the battery swap station system as described in claims 7-8 is implemented.

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